Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSVOLKSWAGEN1999GTI (1J1) V6-2.8L (AFP)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTESTING AND INSPECTIONSCAN TOOL TESTING AND PROCEDURESWITH GENERIC SCAN TOOLDIAGNOSTIC MODE 9: VEHICLE INFORMATION
1999 Volkswagen GTI (1J1) V6-2.8L (AFP)
Diagnostic Mode 9: Vehicle Information
1999 Volkswagen GTI (1J1) V6-2.8L (AFP)SECTION Diagnostic Mode 9: Vehicle Information
Diagnostic mode 9: Vehicle information
Function
In this diagnostic mode, vehicle specific diagnostic data such as e.g. the control module versions will be displayed.
Requirement
- There must not be any DTCs stored in DTC memory, Diagnostic mode 3: Check DTC memory. Diagnostic Mode 3: Check DTC Memory
Procedure
- Connect diagnostic tester. Diagnostic Tester, Connecting
- Switch ignition on.
- Under address word 33, select "Diagnostic mode 9: vehicle information".
- Select desired vehicle information "Test-ID XX".
Display vehicle information
Test-ID Diagnostic text
04: Calibration identification e.g.:
- 022906032CR 0005Engine Control Module (ECM) identification
06: CVN (control module-check sum) e.g.:
- 76E80034the check sum is different for every control module version
- No results
- End diagnosis and switch ignition off.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.